ON TIMEBOARD

UA 4307 on time

United Airlines 4307: Houston to Mobile at 2:35 p.m. (past 12 months)

On time
85%
358 flights · likely 81–88%
Cancelled
1.1%
of scheduled flights
Typical arrival
−11 min
median vs schedule
When late
+57 min
average delay
Similar flights
85%
UA, same route & hour

About 1 in 7 UA 4307 flights from Houston arrived 15+ minutes late, diverted or cancelled over the past year (15%); 1.1% were cancelled. The typical flight landed 11 minutes early.

UA 4307: IAH → MOB

Scheduled to leave Houston at 2:35 p.m. local time, operated by CommutAir as C5 4307. Over the past year it arrived on time 85% of the time (358 flights), in line with other UA flights on the route at that hour (85%). Last seen in the data Aug 31, 2026.

Month by month

40%70%100%Sep 2025: 90% on time (30 flights)90SepOct 2025: 94% on time (31 flights)94OctNov 2025: 79% on time (28 flights)79NovDec 2025: 88% on time (26 flights)88DecJan 2026: 77% on time (31 flights)77JanFeb 2026: 100% on time (28 flights)100FebMar 2026: 77% on time (31 flights)77MarApr 2026: 93% on time (30 flights)93AprMay 2026: 81% on time (31 flights)81MayJun 2026: 73% on time (30 flights)73JunJul 2026: 77% on time (31 flights)77JulAug 2026: 90% on time (31 flights)90Aug

By day of week

DayFlightsOn time
Monday5283%
Tuesday4988%
Wednesday5283%
Thursday5190%
Friday5285%
Saturday5082%
Sunday5285%

Why it was late

Airline (crew, maintenance, ops) 44%Late inbound plane 39%Air traffic & airport (NAS) 12%Severe weather 4%

All flights IAH → MOB · Connecting off UA 4307? Check the risk

Questions

How often is UA 4307 from IAH to MOB late?

United Airlines 4307 from Houston, TX to Mobile, AL arrived 15 or more minutes late, was diverted or was cancelled on 15% of 358 scheduled flights between September 2025 and August 2026. 1.1% were cancelled.

Flight numbers change. Figures cover flights with this airline, number and route only. "Likely range" is the 95% interval for the true on-time rate given the number of flights. This is history, not live status: check United Airlines for today's flight. Method.